Self-heating sad-iron



(Model.) sheets-sheet 1.

E. M. ROBERTS.V SELF HEATING .SAD IRON.

N.,448. Patented Mar. 4, 1890.

l M\\\. 11 l. E @7" mi /nulwLlwIa B I? Tl E. l i l.

Jv. l l 5141i lor ooo'osoo 0.00QOL N. PUERS. mivmwgriyblr. Wilhnltn. D.C.

(Model.) Y 3 sheetssheet 2. 1 E. M. ROBERTS.

' SELF HEATING SAD IRON.

No. 422,448. Patented Mar. 4, 1890.

N. PETKRS. Plwwumngnpher, Washingwn. D. C.

3 Sheets-#Sheet 3.

LPatented Mar. 4, 1890.

A @43am/$02 Emmi!) JYl/.Pwbert @Ho'uw/ E. M. ROBERTS. SELF HEATINGSADIRON.

(Model.)

No. 422,448l

62ml t1@ com. u

UNITED STATEs PATENT OFFICE.

EDVARD M. ROBERTS, OF MARION, KANSAS.

SELF-HEATING SAD-IRON.

SPECIFICATION forming part of Letters Patent No. 422,448, dated March 4,1890.

Application filed May 18, 1883. Serial No. 274,304. (Model.)

To @ZZ whom it may concern.-

Be it known that I, EDWARD M. ROBERTS, a citizen of the United States,residing at Marion, .in the county of Marion and State of Kansas, haveinvented a new and useful Improvement in Self -Heating Sad-rons, ofwhich the following is a specification.

My invention relates to an improvement in self-heating sad-irons; and itconsists in the peculiar construction and combination of devices, thatwill be more fully set forth hereinafter, and particularly pointed outin the claims.

In the accompanying drawings, Figure 1 is a side elevation of aself-heating sadiron embodying my improvement, a portion of one side ofthe iron being broken away. Fig. 2 is a similar view of the top plate 0fthe iron provided with the burner and reservoir. Fig. 3 is a similarview of the body of the iron, showing the same detached from the topplate. Fig. 4 is a detached top plan view of the body of the iron. Fig.5 is a top plan view of the top plate of the iron, the shield, handle,reservoir, needle-valve, and mixing pipe or chamber being removed. Fig.6 is a vertical transverse sectional view taken onA the line of Fig. 5.

A represents the body of the iron, which is made of iron, steel, orother suitable metal, and of the usual shape, and is hollow and has itsupper side open. lThe upper edges of the' ironarel provided withlongitudinal recesses B, of suitable depth, and lnear the bottom of theiron are airGinlet openings C, which communicate with the interior ofthe iron and extend through the sides thereof. In the corners of theiron, on its upper side, are vertical threaded openings D. n

E represents a top plate of suitable thickness, which is adapted to fitover and to cover the iron, and is provided on its under side, at itscenter, with a longitudinal burnentube F,

.which is formed or cast integrally-with the top plate, and hasapertures G on its lower side, which communicate with the bore of thetube. Both ends of the burnertube are closed. On the center of the topplate is a boss H, which is provided with an opening that communicateswith the bore of the burn= er=tube. At a suitable distance at one sideof said boss is a similar boss Land ata suitable distance in advance ofthe boss I is a similar boss K.

L and L designate openings or channels which are drilled or boredlongitudinally in the top plate E from the rear end of the same. Similarchannels L2 L3 are drilled 0r bored transversely in the top plate fromone side thereof. L3 join each other at L4, and the channels L L2 crosseach other at L5. The inner end of the channel L communicates with theopening in the boss I, and channal L3 communi-v cates with the openingin the boss K. The outer ends of the several channels or openingsareclosed by plugs P2.

In the corners of the top plate are openings M, which are adapted toregister with the openings D, and screws N are inserted in the 7o saidopenings M and are adapted to engage the openings D, so as to secure thetop plate rmly to the iron.

O represents a reservoir for gasoline or other suitable fluid, and Prepresents a tube which supports the said reservoir and is attached tothe central opening in the boss K, thereby putting the reservoir incommunication with the channel L3.

Communicating with and attached to the 8o central opening in the boss lis a valve-case R, which communicates with the channel L and is providedwith the usual needle-valve S.

T represents a mixing-tube, which is attached to the boss I-l,communicates at its lower end with the bore of the burner-tube, and hasits upper end curved and arranged opposite the point of the needle-valveand at a suitable distance from the same, leaving an open space betweenthe mixing-tube and the 9o valveca'se.

U represents a yoke or frame, which is U- shaped and has the usualhandle V, secured by a boltrod W between the upper ends of its arms. Onthe upper side of the top plate E, at the front and rear ends thereof,are standards X. Washers Y are arranged on the upper sides of the saidstandards, and the lower sides of the handle frame or yoke is supportedon the said washers.

Z represents a deilecting-shield, which is made of asbest-us or othersuitable non-con IOO The inner ends ofthe channelsv L 6o i ductingm'aterial. The said shield is arranged on the upper side of the lowerportion of the handle yoke or frame, and screw-bolts A' are passedthrough the said shield, through the handle-frame, through the washers Yand standards X, and engage threaded openings in the top plate, therebysecuring the handle and the shield firmly above the top plate, as shown.

In operation initial heat is first applied in any convenient manner tothe iron until vapor shall be generated in the channels of the cover. Byopening the needle-valve the vapor is permitted to escape into'themixingtube T, and the latter conveys the said vapor to the bore of theburner-tube, together with a suiiicientquantity of air to make the vaporcombustible. The commingled air and vapor escape from the burner-tubethrough the openings G, and on being ignited burn in flames of greatheat, and which impinge against the bottom and sides of the iron andserve to heat the saine to a very high degree, thereby causing thegeneration of vapor to be continued in the channels of the cover. Air isadmitted to the iron through the openings C in sufiicient quantities topromote combustion, and the heated air and products of combustion escapefrom the interior of' the iron through the openings in the sidesthereof, which are formed by the recesses B. The shield prevents theheat from burning the hand of the operator.

By my improved method of constructing the top plate of the flat-iron itwill be seen that the burner-tube and the vapor-generating channels areintegral therewith, and therefore simple and compact. Neither does theburner-tube extend at either end, to interfere with the iron beingtilted for the purpose of polishing. The tortuous channel formed by thechannels L3, L, L, and L2, through which the fiuid is conveyed from thereservoir to the valve-case, is of considerable extent, and, beingformed, as described, in the body of the top plate, will be exposed tothe full action of the heat by which the fluid is converted into vapor.

I disclaim a vapor generator and burner consisting of abodyhavinglongitudinal openings therein communicating with each other, thebody being provided with apertures leading from another longitudinalopening to form a burner, and being also provided with a gasreceiver, anopen recess, and a gas-escape opening from the receiver.

Having thus described my invention, I claiml. The combination of thehollow iron, the top plate detachably secured thereto, the burner-tubearranged under the top plate, the latter being provided with a channelfor the purpose set forth, the valve-case commnnicat` ing with one endof the said channel and having the needle-valve, the pipe T, having oneend arranged opposite the needle-valve and communicating at its oppositeend with the interior of the burner-tube, the reservoir, and the pipeconnecting the same with the channel L, substantially as described.

2. In a self-heating sad-iron, a top plate o cover having a tortuousvapor-generating channel formed integrally therein, substantially as setforth.

3. In a self-heating sad-iron, a top plate or cover having a tortuousvapor-generating channel formed integrally therein, and provided on itsupper side with bosses having vertical openings communicating with theends of said channel, for the attachment, respectively, of a reservoirfor burning-fluid and a valve-case, substantially as set forth.

4. In a self-heating sad-iron, the herein-described top plate, havingthe tortuous vaporgenerating channel and a vapor burner-tube formedintegrally therewith, in combination with a fluid-reservoir attached tothe upper side of said top plate at one end of the vaporgeneratingchannel, substantially as set forth.

5. In a self-heating sad-iron, the herein-described top plate, havingopenings or channels L L drilled longitudinally and openings or channelsL2 L3 drilled transversely therein, the inner ends of the channels L L3being joined and the channels L L2 intersecting each other, asdescribed, in combination with the plugs P2 at the outer ends of saidopenings and the bosses at the ends of the tortuous channel thus formed,for the attachment, respectively, of a fluid-reservoir and a valve-case,substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto aixed mysignature in presence of two witnesses.

EDVARD M. ROBERTS.

Witnesses:

H. A. MCLEAN, C. W. KELLER.

IOO

